package ch3;

/**
 * Created by 竹韵澜 on 2017/7/16.
 * String类；concat,replace,substring方法
 */

//********************************************************************
// StringMutation.java Java Foundations
//
// Demonstrates the use of the String class and its methods.
//********************************************************************

public class StringMutation {
    //-----------------------------------------------------------------
    // Prints a string and various mutations of it.
    //-----------------------------------------------------------------

    public static void main (String[] args) {
        String phrase = "Change is inevitable";
        String mutation1, mutation2, mutation3, mutation4;

        System.out.println ("Original string: \"" + phrase + "\"");
        System.out.println ("Length of string: " + phrase.length());

        mutation1 = phrase.concat (", except from vending machines.");
        mutation2 = mutation1.toUpperCase();
        mutation3 = mutation2.replace ('E', 'X');
        mutation4 = mutation3.substring (3, 30);

        // Print each mutated string
        System.out.println ("Mutation #1: " + mutation1);
        System.out.println ("Mutation #2: " + mutation2);
        System.out.println ("Mutation #3: " + mutation3);
        System.out.println ("Mutation #4: " + mutation4);
        System.out.println ("Mutated length: " + mutation4.length());
    }
}
